Sponge Gold in Quartz Specimen from Idaho

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An oddity indeed - sponge gold in quartz from Idaho - we hardly ever see something like this. A very rare sight to see a sponge gold quartz specimen from a pocket mine in Idaho. This is a remarkable gold in quartz piece and hefty at 23.8 grams (366 grains). It has a large amount of gold to quartz ratio and the specific gravity test shows a total gold content of 17.3 grams of contained gold. A rare and interesting piece.

Weight: 23.8 grams (366 grains)
Dimensions: 1-1/4" by 1" or 33mm by 25mm.

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